Commit 1880ed71 authored by Jiri Olsa's avatar Jiri Olsa Committed by Steven Rostedt (VMware)
Browse files

tracing/uprobe: Fix uprobe_perf_open probes iteration 

Add missing 'tu' variable initialization in the probes loop,
otherwise the head 'tu' is used instead of added probes.

Link: https://lkml.kernel.org/r/20211123142801.182530-1-jolsa@kernel.org



Cc: stable@vger.kernel.org
Fixes: 99c9a923 ("tracing/uprobe: Fix double perf_event linking on multiprobe uprobe")
Acked-by: default avatarMasami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: default avatarJiri Olsa <jolsa@kernel.org>
Signed-off-by: default avatarSteven Rostedt (VMware) <rostedt@goodmis.org>
parent 13605725

kernel/trace/trace_uprobe.c

+1 −0
Original line number Diff line number Diff line
@@ -1313,6 +1313,7 @@ static int uprobe_perf_open(struct trace_event_call *call, 
		return 0;



	list_for_each_entry(pos, trace_probe_probe_list(tp), list) {

		tu = container_of(pos, struct trace_uprobe, tp);

		err = uprobe_apply(tu->inode, tu->offset, &tu->consumer, true);

		if (err) {

			uprobe_perf_close(call, event);